The only thing I wish they would add is consecutive sentences. - Edit 1
Before modification by Joel at 26/08/2012 10:27:00 PM
As someone whose mother retired from a state Atty. Generals office and whose wife is a Norwegian legal assistant, I can tell you forvaring is very foreign to the American reference frame. Sufficiently so that I have been discussing it with my wife since before Breiviks murders in Oslo and on Utøya, and I still do not have a firm grasp of it. Breivik will not simply be released in 21 years though; the forvaring law was created about a decade ago to ensure that sort of thing does not happen, and Breivik will almost certainly be in prison for life.
All in all, despite the strangeness of the law to me, I have no doubt that Norwegian officals will never let him out.
His facility with manipulating psych test results worries me, but I am reasonably sure you are right if only because of Jontes observation: The possibility of vengeance by friends or family of his many victims will probably prevent him ever being released. Consecutive sentences, however, would guarantee it even without individual sentences >21 years. It bothers me he could escape and literally murder the whole country with impunity, because no additional sentence is legal.